For the proximity to the Madrid airport- this place is nice. I give it a 4.5 stars based on cleanliness and beds. The rooms are small, but if you are out all day, all you need is a clean bed and bathroom.
Tip- when booking room thru Expedia; be sure to add parking for only $5 (4€) more, or else at the hotel it's 15€ ($20).

we stayed here for our last nite in spain bcz we had an early morning flt back. we chose it bcz of trip advisor reviews and it was superb! rooms were gorgeous, v modern, immaculate and super comfortable. all kinds of great amenities- including coffee set up in the room, thick terry robes, all kinds of great toiletries. each room came w its own laptop as well!!! v quiet- could not ask for more. shuttle service picked us up from the airport late at nite and took us back in the morning. price was fabulous. would recommend this hotel to everyone and would most def stay there again!

We booked two room here since the price was quite good and the hotel is close to the Plenilunio shopping centre. We arrived at Madrid in the afternoon and could take advantage iof the free shuttle bus service (approx. every half hour). Luckily we got seats while others has to wait (no pre-booking from the airport). Check-in took some time (as usual in Spain) despite rooms booked and pre-paid. The rooms are modern and bright but on the small side. The beds are very hard (even for Spanish standards). The bathroom is spacious, especially the shower, but note the thin glass door (it doesn't give much privacy). Also no amenities, just a soap and a dispenser in the shower, which I find "cheap" for a four star hotel. We went to the shopping centre for dinner, it's a 10 min walk. Plenilunio is big and noisy with a lot of shops and very busy (especially weekends) with many fast food restaurants. Remember to book the shuttler service back to the airport and be on time, to secure a seat, since it runs only twice/hour and often is fully booked. The hotel is fine but I prefer the Axor Barajas, which is located next door.